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Intangibles and Other Assets
 12 Months Ended
Dec. 31, 2016
Intangibles And Other Assets [Abstract]  
Intangibles and Other Assets
Intangibles and Other Assets
 
December 31,
 
2016
 
2015
 
(In thousands)
Purchased patents and other purchased intangible assets
$
4,605

 
$
4,605

Less: Accumulated amortization of purchased patents and other purchased intangibles
(4,605
)
 
(4,599
)
Purchased patents and other purchased intangible assets, net
—

 
6

Other assets
365

 
258

Intangibles and other assets, net
$
365

 
$
264


The Company amortizes its intangible assets related to purchased patents over their estimated useful lives, generally 10 years from the purchase date. The Company recorded $6,000, $20,000 and $67,000 in amortization of purchased patents for the year ended December 31, 2016, 2015 and 2014, respectively.